Novel soft-switching converter with magnetic amplifiers

Author

Brkovic, Milivoje ; Pietkiewicz, Andzrej ; Cuk, Slobodan

Author_Institution

Power Electron. Group, CALTECH, Pasadena, CA, USA

fYear

1993

fDate

15-19 Nov 1993

Firstpage

830

Abstract

A novel half-bridge DC-to-DC converter combines the functions of loss-less soft-switching and secondary side output voltage regulation at constant switching frequency. This was made possible by using magnetic amplifiers in series with the rectifier diodes. The primary side switches are driven at constant frequency and 50% duty ratios with small dead-time and the output voltage is regulated by PWM control of the magnetic amplifiers on the secondary side. Experimental results obtained on 200 W-48 V prototype operated at 200 kHz confirm these features

Keywords

magnetic amplifiers; power convertors; pulse width modulation; rectifiers; rectifying circuits; switching circuits; voltage control; 200 W; 200 kHz; 48 V; PWM control; constant switching frequency; half-bridge DC-to-DC converter; loss-less soft-switching; magnetic amplifiers; rectifier diodes; secondary side output voltage regulation; soft-switching converter; DC-DC power converters; Diodes; Magnetic switching; Prototypes; Pulse width modulation; Rectifiers; Switches; Switching converters; Switching frequency; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on

Conference_Location

Maui, HI

Print_ISBN

0-7803-0891-3

Type

conf

DOI

10.1109/IECON.1993.338973

Filename

338973